LL40 postcode area guide — Gwynedd
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL40 postcode district in Gwynedd — every official dataset on one page.
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Where is LL40?
Broadband & internet speeds in LL40
Strong coverage
Superfast (30Mb+)
79.8%
Ultrafast (300Mb+)
41.2%
Gigabit-capable
41.2%
Below USO (10Mb)
3.9%
Broadband availability in the LL40 postcode district (Gwynedd) is Strong — superfast is near-universal and gigabit is rolling out. Across the 359 postcodes Ofcom measures in LL40, superfast broadband (30 Mbit/s or faster) reaches 79.8% of premises and gigabit-capable lines are available to 41.2%.
Around 3.9% of premises in LL40 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in LL40
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL40 1AA | 100% | 5% |
| LL40 1AB | 100% | 50% |
| LL40 1AD | 100% | 0% |
| LL40 1AE | 100% | 0% |
| LL40 1AF | 100% | 0% |
| LL40 1AL | 100% | 0% |
| LL40 1AN | 100% | 0% |
| LL40 1AP | 100% | 0% |
| LL40 1AR | 100% | 0% |
| LL40 1AS | 100% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Gwynedd
Ofcom's coverage model for the wider Gwynedd district (68,440 premises):
4G indoors — all networks
76.8%
4G outdoors — all networks
95.3%
5G outdoors — all networks
—
Voice indoors — all networks
81.4%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in LL40
Police recorded 3 incidents within about a mile of the centre of LL40 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Anti-social behaviour | 1 | 33.3% |
| Shoplifting | 1 | 33.3% |
| Violence & sexual offences | 1 | 33.3% |
Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).
House prices in LL40
Based on 54 sales registered with HM Land Registry in the last 12 months, the median sold price in LL40 is £175,000, down 18.6% on the previous year (£215,000).
Detached
£270,000
17 sales
Semi-detached
£175,000
6 sales
Terraced
£145,000
22 sales
Flat / maisonette
£107,000
4 sales
Latest recorded sales in LL40
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 6 May 2026 | £270,000 | Detached | LL40 2AF | |
| 5 May 2026 | £470,000 | Detached | LL40 2TA | |
| 21 Apr 2026 | £165,000 | Detached | Cader Road | LL40 1RH |
| 17 Apr 2026 | £176,500 | Flat | Arran Villas | LL40 1BD |
| 10 Apr 2026 | £210,000 | Terraced | Wenallt Villas | LL40 1NL |
| 7 Apr 2026 | £310,000 | Semi-detached | LL40 2TF | |
| 30 Mar 2026 | £67,000 | Flat | Lion Street | LL40 1DN |
| 20 Mar 2026 | £110,000 | Terraced | Meyrick Square | LL40 1LU |
| 17 Mar 2026 | £345,000 | Detached | Barmouth Road | LL40 2YY |
| 12 Mar 2026 | £185,000 | Detached | Bryniau | LL40 2TY |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Gwynedd demographics
Census 2021 figures for the wider Gwynedd district (117,393 residents, 51,105 households):
| Age profile | |
|---|---|
| Under 15 | 16.6% |
| 15–29 | 23.3% |
| 30–44 | 15.9% |
| 45–64 | 21% |
| 65+ | 23.2% |
| Housing tenure | |
|---|---|
| Owner-occupied | 65.4% |
| Private rented | 17.6% |
| Social rented | 9.9% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around LL40
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Aran Hall School | Not applicable | — | — | LL40 2AR |
| Ysgol Bro Idris | Not applicable | — | — | LL40 1HY |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Food hygiene ratings in LL40
75 rated food businesses operate in LL40. 63 hold the top rating of 5, 3 are rated 4, and none are currently rated 2 or below.
Among the 5-rated: Aber Cottage Bed & Breakfast, Afon Rhaiadr Country House, Aran Hufen Ia Ltd, Bah Humbug Bach, Borthwen B&B.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL40
From a sample of 56 Energy Performance Certificates across 10 LL40 postcodes, the most common rating is band E (average band E). 21% of sampled homes are rated C or better.
Band C
21%
Band D
21%
Band E
34%
Band F
16%
Band G
7%
Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.
Phone area codes for Gwynedd
Landlines around LL40 typically use:
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What's it like living in LL40?
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Moving to LL40? Sort your connectivity first
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Postcodes in LL40
Neighbouring districts
All Llandudno (LL) postcode districts ›
Frequently asked questions
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Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.